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  #1  
Old 12-06-2013, 03:11 PM
JesusFreak_2000RangerXLT JesusFreak_2000RangerXLT is offline
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Default Terrible miss with a P0304 code

My truck was running great just the other day, now it idles and runs with terrible miss. From what I have found, the P0304 code says that my #4 cyl. is missing. My local mechanic said it is probably the coil pack. I checked to see how much of a spark the cylinder was producing with an old spark plug and you could barely see the spark, but not even hear it. I am gonna change the coil tomorrow. Let me know if you guys think it could be something different than the coil. Thanks.
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  #2  
Old 12-06-2013, 03:16 PM
djfllmn djfllmn is offline
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When was the last time a tune up was done?
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  #3  
Old 12-06-2013, 03:20 PM
JesusFreak_2000RangerXLT JesusFreak_2000RangerXLT is offline
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Default Re: Terrible miss with a P0304 code

Quote:
Originally Posted by djfllmn View Post
When was the last time a tune up was done?
I just changed the spark plugs, wires, changed engine, transmission, and differential fluid less than 2,000 miles ago. I have only had the truck for 4 1/2 months.
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  #4  
Old 12-06-2013, 03:21 PM
djfllmn djfllmn is offline
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What brand plugs did you put in?
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  #5  
Old 12-06-2013, 03:35 PM
JesusFreak_2000RangerXLT JesusFreak_2000RangerXLT is offline
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Default Re: Terrible miss with a P0304 code

Quote:
Originally Posted by djfllmn View Post
What brand plugs did you put in?
I put in the NGK Laser Platinum spark plugs.
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2000 Ford Ranger XLT 4x4, 4.0 auto, 143k, Behind Grill LEDs, Tailgate Bar, Reverse, dome, cargo LEDs, Escape Emblems, SI/SO MBRP Exhaust, Delta Tool Box, TYC headlights, Platinum Plus Fogs, 06+ Tails and Chrome Mirrors, Window Tint, Pioneer Stereo, 4 Infinity Speakers, Painted ext. plastic black, 16x8 ProComp 1069s, Discoverer Cooper ATR 265s, tbar crank and shackles. 1 1/2 in. lift.
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  #6  
Old 12-06-2013, 04:34 PM
djfllmn djfllmn is offline
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Quote:
Originally Posted by JesusFreak_2000RangerXLT View Post

I put in the NGK Laser Platinum spark plugs.
Bad choice...go with Motorcraft
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  #7  
Old 12-06-2013, 04:42 PM
JesusFreak_2000RangerXLT JesusFreak_2000RangerXLT is offline
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Default Re: Terrible miss with a P0304 code

Quote:
Originally Posted by djfllmn View Post
Bad choice...go with Motorcraft
Why are NGK bad? Just curious.
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2000 Ford Ranger XLT 4x4, 4.0 auto, 143k, Behind Grill LEDs, Tailgate Bar, Reverse, dome, cargo LEDs, Escape Emblems, SI/SO MBRP Exhaust, Delta Tool Box, TYC headlights, Platinum Plus Fogs, 06+ Tails and Chrome Mirrors, Window Tint, Pioneer Stereo, 4 Infinity Speakers, Painted ext. plastic black, 16x8 ProComp 1069s, Discoverer Cooper ATR 265s, tbar crank and shackles. 1 1/2 in. lift.
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  #8  
Old 12-06-2013, 04:47 PM
sole sole is offline
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Quote:
Originally Posted by JesusFreak_2000RangerXLT View Post
Why are NGK bad? Just curious.
because rangers are picky little trucks and 90% of the time they misfire and are not happy unless you use motorcraft plugs, it's not that their bad just not what you need
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  #9  
Old 12-06-2013, 04:51 PM
JesusFreak_2000RangerXLT JesusFreak_2000RangerXLT is offline
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Default Re: Terrible miss with a P0304 code

Quote:
Originally Posted by sole View Post
because rangers are picky little trucks and 90% of the time they misfire and are not happy unless you use motorcraft plugs, it's not that their bad just not what you need
Oh ok. Since I already ordered the coil, I'll probably put it in, but I will definitely look into getting some Motorcrafts. Thanks you guys.
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2000 Ford Ranger XLT 4x4, 4.0 auto, 143k, Behind Grill LEDs, Tailgate Bar, Reverse, dome, cargo LEDs, Escape Emblems, SI/SO MBRP Exhaust, Delta Tool Box, TYC headlights, Platinum Plus Fogs, 06+ Tails and Chrome Mirrors, Window Tint, Pioneer Stereo, 4 Infinity Speakers, Painted ext. plastic black, 16x8 ProComp 1069s, Discoverer Cooper ATR 265s, tbar crank and shackles. 1 1/2 in. lift.
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  #10  
Old 12-06-2013, 05:07 PM
Cody913 Cody913 is offline
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Quote:
Originally Posted by sole View Post
because rangers are picky little trucks and 90% of the time they misfire and are not happy unless you use motorcraft plugs, it's not that their bad just not what you need
X2 I put ngk in my ranger on my last tune up and my truck did not respond well to them at all. I just run motorcraft now and have never had any issues with them.
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  #11  
Old 12-07-2013, 02:46 PM
JesusFreak_2000RangerXLT JesusFreak_2000RangerXLT is offline
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Default Re: Terrible miss with a P0304 code

UPDATE!
So I was mistaken, I do have Motorcraft plugs in my truck. Changed the coil and now the truck runs like a dream. Thanks again you guys.
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2000 Ford Ranger XLT 4x4, 4.0 auto, 143k, Behind Grill LEDs, Tailgate Bar, Reverse, dome, cargo LEDs, Escape Emblems, SI/SO MBRP Exhaust, Delta Tool Box, TYC headlights, Platinum Plus Fogs, 06+ Tails and Chrome Mirrors, Window Tint, Pioneer Stereo, 4 Infinity Speakers, Painted ext. plastic black, 16x8 ProComp 1069s, Discoverer Cooper ATR 265s, tbar crank and shackles. 1 1/2 in. lift.
Build thread!http://www.fordrangerforum.com/proje...ld-thread.html
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